For herself and as executrix



(No Model. A 3 Sheets-Shet 1.

M. A. 8: A. S. KISSELL.

M. A. KISSELL, Executrixof A. S. KISSELL, deceased ELEGTRO AUTOMATICVALVE.

No. 415,871. Patented Nov. 26, 1 889.

AW IIA u PETERS. Wain-Lithographer, c.

(No-Model.) 3 Sheets-Sheet 2. M. A. & A. S. KISSELL.

M. A. KISSELL, Executn'x of A. S. KISSELL, deceased. ELEGTRO AUTOMATICVALVE.

No. 415,871. Patented Nov. 26,1889.

(No Model.) 7 SShee'ts-Sheet 3. M. A. &;-A. S. KISSELL.

M. A. KISSELL, Executrix of A. S. KISSELL, deceased. ELECTED AUTOMATICVALVE.

No. 415,871. Patented Nov. 26, 1889.

I l J N PEIERS, Phnku-Liihbgrapher. Washington, 0. c.

UNITED STATES PATENT OFFICE- MARY A. KISSELL, OF CHICAGO, ILLINOIS, FORHERSELF AND AS EXECUTRIX OF ABRAHAM S. KISSELIJ, DECEASED.

ELECTRO-AUTOMATIC VALVE.

SPECIFICATION forming part of Letters Patent No. 415,871, dated November26, 1889.

Application filed March 21, 1889. $eria1 No. 304,219. (No model.)

To all whmn it may 007200772: L Be it known that ABRAHAM S. KISSELL,late a citizen of the United States, residing at Chicago, county ofCook, and State of Illinois, now deceased, and MARY A. KIssELL, of saidChicago, did, during the lifetime of said ABRAHAM S. KISSELL, inventcertain new and useful Improvements in Electro-Automatic Valves, ofwhich the following is a I0 specification.

Said invention is an improvement upon the device shown in Letters Patentof the United States No. $354.2, issued June 15, 1880, and relates tomeans whereby a valve which is used to control the flow of steam, air,water,

or gas through a pipe is opened or closed automatically by the admissionof a fluid under pressure alternately above and below a piston connectedby a suitable stem to the valve, said piston being located in apressurechamber, and the supply of actuating-fluid being regulated bythe movement of an auxiliary valve or plunger in a supplementalpressure-chamber, said plunger having its 2 5 movements controlled byelectrical devices connected in circuit with a suitable thermostat or asimilar appliance, adapted to close the circuit and thereby actuate thedevice.

In carrying out this invention some of the 0 principles described insaid patent are utilized, among others that of operating the valve bymeans of the difference in area of its two actuating-surfaces; butinthis construction the valve is not connected directly to the ar- 3 5mature, and the movements of the valve are performed solely under theinfluence of the fluid-pressure, the electrical devices being used onlyfor the purpose of closing and opening the fluid-ports.

0 The invention consists in the novel constructions and combinationshereinafter described, but particularly pointed out in the claims.

In the drawings, Figure 1 is a side eleva- 5 tion of a section of pipehavinga valve-charm ber formed therein, and showing also asteamcylinder, exhaust-chamber, and operatingmagnets. Fig. 2 is acentral vertical section of the device shown in Fig. 1, some of theparts being in elevation, and showing, also, the. thermostat andelectrical connections. Fig. 3 is an elevation of the device shown inFig. 1, except that the casingsurrounding the low, as shown in Fig. 6.

mounted.

magnets is in section and the View is from the opposite side. Fig. 4 isa similar view of the device from the side indicated by the arrow,Fig. 1. Fig. 5 is a plan view of the magnets, the casing thereof beingremoved. Figs. 6, 7, and 8 are details.

Referring to the accompanying drawings, A is the valve-chamber, having asuitable seat formed therein and in open communica tion with thesupply-pipe B.

a is a threaded flange, to which the fluidoutlet pipe is joined.

C is a valve, which may be of any suitable form, and in thisconstruction the valve-stem 0 is projected upwardly into a cylindricalpressure-chamberD, and is connected therein to a piston E, thereciprocation whereof under the influence of steam or other fluid underpressure eifects the seating and unseating of the valve, and thereby theflow of the motive or heating liquid.

F is an auxiliary pressure-chamber, havin g, preferably, a cylindricalshell G therein, within which reciprocates a plunger H, whose stem h isconnected to the armaturel of mag net J J The shell or casing G hasapertures g, which register with apertures d in the Wall of thecylindrical chamber D. Said shell is also provided with apertures g,opposite the apertures g. The plunger G has peripheral grooves G towardeach end thereof and is 1101- Transverse apertures g are formed,respectively, above and below the peripheral grooves G, whereby a fiiuidunder pressure may escape from the hollow of the plunger through saidapertures 0 and through the aperture d into the pressurechamber.

F is a fluid-supply pipe communicating at one end with the supply-pipe Bbelow the valve-seat, and at the other with the hollow of the shell G,whereby said hollow is kept filled with live steam or other fluid underpressure. A suitable waste-opening, as f, will be formed in the bottomof the chamber F, and the liquids formed by the condensation of vaportherein will be conducted thence and suitably discharged.

In Fig. 5 is shown in plan view a pair of electro-magnets J J, and thearmatures I I of which are connected to bars K K, pivotally L is a plateof insulating material,

bearing upon the upper edge thereof springcontacts 1 Z, whose ends arepreferably passed by each other and curved, as shown. A short arm 70,depending from one of the bars K, carries a rigid lever K, which isadapted to rock an arm M, pivoted to the back of plate L. Arm M has anangular extension m, which is adapted to ride upon the curved ends ofthe spring-contacts Z, so as to direct the circuit through the one orthe other of the pair of magnets. By these means the magnets are keptready to receive the current whenever the actuating-needle of thethermostat closes the break thereat, while at the same time theelectrical energy-is conserved and is expended only when the temperaturevaries sufficiently to make action necessary. The magnets will form partof electric circuits provided with a battery Y, of suitable strength,and a thermostat T or other appliance will be joined in the circuits inthe usual manner, so as to complete said circuits whenever thetemperature of the locality of the thermostat passes predeterminedpoints. The thermostat may be of the sort shown or such as described insaid prior patent, or of any other improved form. The electricalconnection will be readily supplied by a person skilled in the art. The

' wires N N join to the hot and cold sides of the thermostat themagnetsJ J, respectively, and the wire 0 joins the metallic pivot of armM to one pole of the battery, the opposite pole being joined to thethermostat in the usual manner.

The valve is operated in the following manner: When the temperature ofthe apartment containing the thermostat or other circuitclosing devicehas passed the point at which said device is set, the electrical circuitis closed,

whereupon the magnets J will attract the armature I and cause thereciprocation of the plunger in such manner as to admit steam to theupper side of the piston E, which being of greater area than the valveB, said valve will be seated and the supply of steam or other motivefluid cut off. \Vhen the temperature has fallen sufficiently to causethe deflection of the needle of the thermostat to the opposite side, thecontact is made and the current directed through the magnet J,attracting the armature I and causing the reciprocation of the plungerII in the direction to admit steam to the lower side of the piston E,and by its expansive force acting 011 said piston, unseating the valveand permitting the flow of the steam or other fluid through theoutlet-pipe to the radiator or other ultimate destination. In theseoperations the steam is alternately admitted above and below the pistonE, and it will be observed by reference to Fig. 2 that when theapertures of the plunger, shell, and wall of chamber D register on oneside of the piston apertures of the chamber, wall, and shell and the peripheral groove of the plunger on the other side of the pistonalso'register, whereby the steam or other fluid of that side may exhaustinto the chamber F and the condensation of the vapors of the fluidoccurs in said chamber. The provision of this exhaust-chamber obviatesthe cushioning of the piston,whereby the free action of the valve wouldbe interfered with, and this feature is found in practice to be of greatutility.

In Fig. 8 is shown a form of plunger which I find it expedient to employwhere the fluid used is under high pressure. In this form ofconstruction the peripheral groove isinterrupted,theplunger-wallbeingmade thin. Said wall is slottedlongitudinally at h, so that a limited amount of expansion andcontraction of the metal of the plunger does not disturb the accuratefit of the latter to the bore of I the shell.

It is obvious that modifications of the described construction may bemadeas, for example, in the form of the piston and of the auxiliaryvalve or plunger, as well as in the construction and arrangement ofother parts of the device. The specific device shown in the drawings isintended to be used to control the supply of heat to radiators,steamcoils, &c.; but the invention is applicable to a variety of uses. I

The electric-switch device herein described and shown was the soleinvention of said ABRAHAM S. KIssELL, deceased, and is not claimed,broadly, herein, but is claimed in a separate application filed in theUnited States Patent Office August 31, 1889, Serial No. 322,688.

I claim 1. In an electro-automatic' valve, the combination, with thevalve and an actuatingarm moved by the'oscillations of the arma- I tureand adapted to engage said spring-contacts alternately, whereby todirect the current through the magnets alternately to causethe-reciprocation of the auxiliary valve, sub stantially as described.

2. In an electro-automatic valve, the combination, with the valve, of apiston of greater area connected to said valve, an auxiliary valvecomprising ahollow plunger hav' ing suitable ports and reciprocatingwithin an inclosingcasing having apertures communicating with theplunger-ports and leading to the piston-chamber, a pipe to supply afluid under pressure to the hollow of the plunger, and an electro-magnetwhose armature is adapted to operate the plunger, substantially asdescribed.

- MARY A. KISSELL. MARY A. KISSELL, Executrz'oc of Abraham 8'.Ift'ssell, deceased. 'Witnesses-z O. C. LINTHICUM, T. D. BUTLER.

